diff --git a/extras/@optimizer/display.m b/extras/@optimizer/display.m
index e6ef4b9a..b883507e 100644
--- a/extras/@optimizer/display.m
+++ b/extras/@optimizer/display.m
@@ -9,7 +9,7 @@ function display(X)
 for i = 1:length(X.dimoutOrig)
     m = m + prod(X.dimoutOrig{i});
 end
-text = ['Optimizer object with ' num2str(n) ' inputs and ' num2str(m) ' outputs.'];
+text = ['Optimizer object with ' num2str(n) ' inputs (' num2str(length(X.diminOrig)) ' blocks) and ' num2str(m) ' outputs (' num2str(length(X.dimoutOrig)) ' blocks).'];
 if isempty(X.ParametricSolution)
     text = [text ' Solver: ' upper(X.model.solver.tag)];
 else